Steam top ten sellers chart: December 15-21

Valve has released its latest top ten weekly sellers chart for Steam – with newcomer DayZ claiming the top spot from last week's winner, Starbound.

Starbound still finished in the runner-up spot, with Rust (last week's runner-up) finishing third this time around.

Steam's end of 2013 sale also had an impact. The BioShock franchise, Counter-Strike: Global Offensive, Batman Arkham Origins, and The Stanley Parable all benefited from the start of the fortnight-long promotion.